Nobody knows the answer except you husband and yourself. You are the person who wear the shoes.

First of all, is the green card really important? Why not let your husband apply this? Usually, GC is applied by husband. Since they have higher degree than us...  If you husband is pursuing a PhD and need GC or EAD to get a better job. You had better stay there till you get green card. I will do whatever I can do to give the whole family the best.

As to kid, it's a long load for you. Do not try to get MBA and baby at the same time. I have two little boys. One during master and one during PhD. It's stress and you can't image how diff it is!!!